Fountain pen



Nev. 16, 1926. 1,606,973

w. D. ROEDER FOUNTAIN PEN Filed March 19, 1926 1a 1/ 1o 15 I8 19-16 222o E5 "III/II II J Patented Nov. 16, 192 6.

wIL I Mn nonnER, or nwranr, ILLINOIS.

FOUnTAIN-PE Application filedyMarbh 19, 1926. Serial No 95,851. Y

' These improvements relate to fountain pens. a'ndhave for their primeobject the provision -of-a notably simple, eas1ly 0perated, cheapandsat-isfactory fountain pen device. r

The present improvementshave a more specific, relation to means i0 7charging a fountain pen device with ink, and arein that class offountain pen structures in which piston pump means are provided. It isnot new to provide a piston cooperatingwiththe shell or barrel fordrawing ink into the hollow interior of the device, no r to provide ahollow piston for the purpose.

y In such constructions, speaking generally; a problem. arises as to thedisposition ofv air during the pumping operation and in the provision ofmeans for. preventinganundue flow of ink at the penpoint due tothepresence of an excess of air withingthe' pen chamber during the writingoperation, Such difficulties have been sought to be overcome in variousways including automatically-op crating valves 7 variously disposedwithin the device, such valves becoming cloggedwith ink and for; variousother reasons proving unsatisfactory. 1 I I i Q It has alsobeen'suggested to have .the op erator apply a finger to an air duct inthe hollow plunger to provide the desir-ed pai v tial vacuum, theremoval of the finger permitting air to escape on the inward stroke ofthe plunger, with means for sealing such vent opening when the device isin use, which construction results in soiling thefinger of theoperator,a coating of ink on the outside of the plunger, and still otherobject-ions ,It is anob'ject to overcomeall such disad vantages, and bysimple means.

In the drawings Figure'l'is nal section through the pen complete, exceptfor the front end portion, showing the several parts of the deviceintheir normal rela= tive positions when the deviceis'incondition foruse;.-Fig. 2 is a similar section ofthe same parts, omitting the outercap, showing the piston. partly withdrawn, "as in the act offillingthepen; and Fig.3 isan enlarged through the e lnt Qr' 'ubea 1-,,-The' tub lar shell or casing "10., illustrated in; the drawings may be.of "'metal,.har d :rub ber,. etc: in aceo rdance with ordinary pie alongitudi I head or nozzle member 11 which, as shownby 1 Fig. 3,is'cylindrioally bored and provided with a tightly-fitting'plug12,;cylindrical in form and extending beyond the head 11, with recessprov sions between it and the head 11 for receivingthe pen point 113. Aduct 14- 5 leads from thehollow interior 15 of'the casing ito theundersurface of the pen point .13.

There is nothing peculiar about the construction of the :shell' creasing10, the head 11,

the pen point 13 and theplug l2 asthus far described, and the onlydeparture at'the front end to be noted is in the provision of the duct15 leading from the'innerend ofthe head 11 to the outer end of the plug12, the v duct' 15 opening. at. 15 K; The present im provein-ents maybeapplied to pen constructions of various details at the normally frontend, H

.. Within there is a hollow plunger 116, which may be a 'p1eceofmet-alp1pe, hard rubber, etc. Spaced ing a good interfitting slidingengagement the. c lindrical shell 01: 1 0 i with the cylindricalhollow,interiorl5 of the shell. The body of the-tubular piston 16 Ipasses with a niceslidin'g fit through a; cir

um constricted opening in the nipple-like extension 19 .ofthe barrel 10.The outer end 20 .of the piston tube l6'is closed as by aoplat-esoldered thereat, andaxia'lly extending from this fixed closure'20 is asmall pin21 passing through a constricted opening in a small cap likeart ed the casing A head 24; on the pin'.2l providesia swiveledconnection be tween-the .cap22 and the piston' as' when;

' .rExtending' from. the duct. 15 (Fig; ,3 151a smallpipe 25 which, aswill-be observed from Figs, 1' and, 2, extends intothe hollowi1i yterior of the pist 'onpand (Fig. reaches e1 most to the end ofIthe'closure 20 atthe outer end of the plstonl when the parts are in:

their normal relationsfor useIfBetweenfthis, losureQOand the 'endofthetube-25 is poisi I tioh'eaa packing e erh nt 2 L' h y er? soft rubber;zorkTrfsiniilar maritime when spadtpredn e1me dee en steer n .22,havinga'n internal thread a't 23 adapted 9 to engageanexternalthread'on'the nippleing its outer end into an enlargement of the ductwhereby a continuous duct is provided from the opening at 15 to theinner end of the tube 25.

The cap 27 is shown as an ordinary element oi fountain pen constructionadapted to fit upon the rear end of the barrel to extend its length forwriting purposes, and upon the front end to cover the pen point when thedevice is not in use.

The operation of the device is as follows: The outer cap 27 being laidaside, the small. er cap 22 is unscrewed from the nipple 19, thusfreeing the piston torlpumping action,

' an-dthis cap 22 then becomes a finger piece lhe pen-point is foroperating the piston. dipped into a supply of inkso that th'eopening at15* is covered. In most instances it will be preferable also to dip thepen deeply eter of the pump parts.

' enough to cover a portion of the end part 11 of the head 11 to excludeouter air irom the. duct 14.. The piston is then drawn outwardlycreating a partial vacuum" which draws ink into the "hollow interior '15through both thedu'cts Hand 15.

While the piston 16 may be long enough to extend to the head ll, wherebyasingle withdrawal of the piston would charge-the hollow interior tocompletion, and even with an excess amount of ink, I prefer to have thepiston considerably shorter than the length of the barrel, both to avoidcharging with an excess which would have to be foreedout, andto-give'the barrel somewhat" greater capacity since the space at 28surrounding the hollow piston stem 16 is normally free of ink. f 1 Withthe piston thus shortened the pen may be filled on one strokeyor one ormore additional pumping strokes may be required, according totherelative length and dianr Should the'first outward stroke not fillthe'hollow interior, on the return stroke the air displaced by theinward movement passes forward through the tube 25 and out of theopening15 The pen does not need tobe withdrawn from theink on the return strokeas the bubbling oi the ink in the supply does'no harm; @n'

the second pumping stroke more ink is drawn into the hollow lnterior asbefore; A 7

third pumping strokernay be employed'if made necessary by a"particular"construe ti0n;'but at any tiinejthat'the' pen is filled.

the return stroke results merely forcing excess ink out through theducts Hand r The cap 22 is then threaded back uponthev nipple 19,- thussealing the inner open end or the small pipe by the 'packing or'stoppage 26. It isthereuponirnpossible for air neglimeans ed me asspecific construction, upon the provisions made for controlling the feedto the pen proper.

In practlce the operator will dip the front. end of the device into theink supply and inner end of the. pipe prevents its discharge through theopening 15% However, the pipe 25 and duct 15 may be cleared'ot ink bylifting the pen out of the supply, drawing back the plungerslightly,'sucki-ng theink in these duct means 15 and 25 into "the iollowinterior of the device, whereupon, on the final return stroke a littlein-kmay issue through the'port l4: and'only air or air and ink 'vvillpass forward through the pipe 25. This operation"may be repeated. 'Theduct -15 25 is the principal passageway for both intake and dischargesince the duct 14 is fairly well closed by the pen proper. r

I contemplate as being included in these This would not be a realobjection since the sealing of the improvementssuch changes, departuresand variations from what is herein specifically illustrated anddescribed as tall withinthe scope of the appendedclaims. V I claim: a V

- 1'. Ina fountain pen, the combination of a tubular casing, means atone end thereof for holding a pen proper in communication with thehollow interiorof the cas1ng,'p1sice ton pump means within 7 the casingfor drawing ink into the hollow interior of the casing, a cap threadedupon the outer end or the casing, a swivel connection between said capand said piston pump means 3 rovidin an intake duct for ink leadin. 2::l o

from the end portion of the device adjacent to the pen properandextendin'g'into the hollow interior or the casing,'and meanscaneschewinginkin'to the hollow interior of the casing; afi-nger piece swivelled' tothe outer endof said, pump means; means for holding the fingerpiece-upon theca'sing',

meansproviding 'an intake duct'torihk lea-ding from 'the*e1id--portionhrrhe device ad= jacenrto the pe pepper ar ses-treading into the hollowinter or of the. means," and intensifier se'alingjthe'irinei d tsa id'duct 1 when "the sei e'ralifparts eras ev'ic'e in for a a lastrh ir'.,srn al:grs

baa-g-eaeeeby se peg ton and engaging the inner end of said duct on theinward stroke of the piston.

3. In a fountain pen, the combination of a tubular casing, means at oneend thereof for holding a pen proper in communication with the hollowinterior of the casing, a tubular piston having. an open inner end andcoacting with the casing to provide pump means for drawing ink into the1101- low interior of the casing, means provid- 7 ing an intake duct forink leading from the end portion of the device adjacent to.

the pen proper and extending into the open end. of the hollow piston,and means for sealing the inner end of said duct when the device isnormally in condition for use.

4. In a fountain pen, the combination of a tubular casing, means at oneend thereof for holding a pen proper in communication with the hollowinterior of the casing, a tubular piston having an open inner end Iand'coacting with the casing to provide pump means for drawing ink intothe hollow interior of the casing, means providing V 5. a fountain pen,the: combination of i a tubular casing, means at its forward end forholding'aspen proper, a tubular piston having an open inner end and aclosed I outer end and coacting with the casing to *provide pump meansfor-drawing ink into" the hollow interior of the casing, a feeder forextending forward from the casing and underlying the pen proper, saidfeeder having a duct for feeding ink to the pen proper from the interiorof the casing, said feederhaving an intake duct for ink leading fromnear the free end portion of the feeder normally'adjacent to the penproper and extending to the interior of the casing, and

a tube extending from said last mentioned duct into the open end of thehollow piston, and means carried bythe pistonrat its outer end portionfor sealing the free end of said tube when the device is normally incondition for use. i v

6. In a fountain pen, the combination of a,

tubular casing, means at one end thereof for holding a pen proper incommunication with the hollow interior of the casing, a feeder normallyadjacent to the pen'proper and extending forward from the end of thecasing, a tubular piston having an open inner end and a closed outer endand coacting with the casing to provide pump means for drawing ink intothe hollow interior'of the caslng, means providing an intake duct forink leading from near the free endof the feeder adjacent to the penproper and entending into the open fend of the hollow piston and to aplace adjacent to the outer end of the p ston when'thepiston is at theend of its inward stroke, means within the piston and at its outer endfor sealing the inner end ofsaid duct when the pistonis at the endofflitsinward stroke, and means for securing the pistonin fixed relationto the casing with the piston at the end of its inward stroke. 7

7 In a fountainpen, the combination of a tubular casing means at one endthereof for holding a penproper in communication with the hollowinterior of the casing, a tubular piston having an open inner end and aclosed outer end and coacting with the casing to rovide pump means fordrawing ink into t e hollow interior of thecasing, means providing anintakeflduct for ink leading from the end'portion of the device.

adjacent to the pen proper and extending:

into the open endof the hollow piston and ill),'

to a place adjacent tofthe outer end of the ,pistonwhen the. piston isatthe end of its inward stroke, means within the piston and at .itsouter end-for sealing the inner end, of said duct when the piston is atthezend of its inward stroke, and means for secur ing the piston infixed relation to thecasing with the piston at the end of its inwardstroke, said last-mentioned means including i a finger-piece swiveled tothe piston, said finger-piece and the cas ng. llStVlIlg coacting screwthreads.

i? t WILLIAM n. Romans.

